LED light source assembly and high-power lamp using the same

ABSTRACT

An LED light source assembly and a high-power lamp using the LED light source assembly is provided, wherein, the LED light source assembly includes a LED light source board and an electric connector. The LED light source board is provided with two electrodes which are arranged in the longitudinal direction of the LED light source board and parallel to each other, and one end of the electric connector is provided with a pin assembly and another end of the LED light source board is provided with a socket assembly to make one end of the LED light source board in the longitudinal direction connected to one side of the electric connector, and another end of the rolled LED light source board in the longitudinal direction of the LED light source board is connected to another side of the electric connector.

The present application is a national phase of International ApplicationNo. PCT/CN2020/113862, titled “LED LIGHT SOURCE ASSEMBLY AND HIGH-POWERLAMP USING THE SAME”, filed on Sep. 08, 2020, which claims the benefitsof priorities to the following two Chinese patent applications, both ofwhich are incorporated herein by reference in their entireties,

-   -   1) Chinese Patent Application No. 202010818678.6, titled “LED        LIGHT SOURCE ASSEMBLY AND HIGH-POWER LAMP USING THE SAME”, filed        with the China National Intellectual Property Administration on        Aug. 14, 2020, and    -   2) Chinese Patent Application No. 202010171137.9, titled “LED        LIGHT SOURCE ASSEMBLY AND HIGH-POWER LAMP USING THE SAME”, filed        with the China National Intellectual Property Administration on        Mar. 12, 2020.

FIELD

The present application relates to LED products, and in particular to anLED light source assembly and a high power lamp using the LED lightsource assembly.

BACKGROUND

LED has gradually replaced a traditional incandescent lamp and anenergy-saving lamp because of its advantages of energy saving, highefficiency and environmental protection, and has been widely used inordinary households.

Since the LED is a point light source with a small area, only 30˜50% ofinput electric energy is output in a form of light, and the remaining50˜70% is released in a form of heat, so that the heat generation of theLED is large and concentrated, and the heat has a great influence on LEDluminescence. In order to solve this technical problem, it is necessaryto use a heat sink to dissipate heat. Usually, the LED is mounted on thesurface of the heat sink to dissipate heat. However, the larger the LEDpower, the larger the volume of the heat sink is required. As a result,the LED lamp is not only bulky and heavy, but also expensive.

SUMMARY

The technical problem to be solved by the present application is toprovide an LED light source assembly and a high-power lamp using the LEDlight source assembly, which does not require a heat sink, has good heatdissipation effect, and is light in weight and low in price.

The following technical solutions are provided according to the presentapplication to solve the above technical problems.

An LED light source assembly includes an LED light source board, andfurther includes an electric connector. The LED light source board isprovided with two electrodes which are arranged in a longitudinaldirection of the LED light source board and parallel to each other. Oneend of the electric connector is provided with a pin assembly andanother end of the electric connector is provided with a socketassembly, so that one end of the LED light source board in thelongitudinal direction of the LED light source board is connected to oneside of the electric connector. Another end of the rolled LED lightsource board in the longitudinal direction of the LED light source boardis connected to another side of the electric connector, and the pinassembly is electrically connected to one of the two electrodes close tothe pin assembly, and the socket assembly is electrically connected tothe other electrode close to the socket assembly to form the LED lightsource assembly with a cylindrical structure as a whole.

The LED light source board includes the two electrodes and multiple LEDlight bars arranged along the longitudinal direction of the LED lightsource board and arranged in parallel between the two electrodes. One ofthe two electrodes and the LED light bar closest to the electrode, twoadjacent LED light bars, and the other electrode and the LED light barclosest to the electrode are all connected into a whole through plasticconnectors. One of the two electrodes and the LED light bar closest tothe electrode, two adjacent LED light bars, and the other electrode andthe LED light bar closest to the electrode are all electricallyconnected through electrical connecting wires.

The electric connector includes an upper cover, an electric connectingboard, a box-shaped lower cover, the pin assembly and the socketassembly. The pin assembly is arranged on one end of a front of theelectric connecting board, and the socket assembly is arranged onanother end of the front of the electric connecting board. Plugterminals for plugging the two electrodes are symmetrically provided attwo ends of one side of the front of the electric connecting board, andplug ports of the plug terminals face an outer side of the electricconnecting board. A pin in the pin assembly is electrically connected toone of the plug terminals close to the pin through a circuit of theelectric connecting board, and a connecting guide pin in the socketassembly is electrically connected to another plug terminal close to theconnecting guide pin through the circuit of the electric connectingboard. The lower cover is provided with an accommodating cavity, and thepin assembly and the socket assembly are exposed outside the lower coverafter the electric connecting board is placed in the accommodatingcavity. The upper cover is covered on the electric connecting board, andafter the upper cover and the lower cover are matched and connected,insertion ports for inserting ends in the longitudinal direction of theLED light source board are respectively formed in two sides between theupper cover and the lower cover. Here, the size of the upper cover isrequired to be slightly smaller than that of the lower cover in design,so that the plug terminals are exposed outside the upper cover, that is,outside the insertion ports. After the ends of the longitudinaldirection of the LED light source board insert into the insertion port,the ends are upturned to abut against the inner side of the upper cover.

Positioning holes are respectively provided at two ends of eachelectrode in a longitudinal direction of the electrode, and a notch isformed by cutting one end of the plastic connector connecting theelectrode and the LED light bar in a longitudinal direction of theplastic connector. The notch extends to the closest positioning hole.Two positioning pillars are respectively arranged on two sides of thelower cover, and the positioning pillars are respectively positionedoutside the insertion ports, and each of the positioning pillars ismatched with the corresponding positioning hole to achieve positioning.One end of the LED light source board with the notch is inserted intoone of the insertion ports on a same side as the plug terminals, whileanother end of the LED light source board is inserted into the otherinsertion port, and parts of the electrodes separated by the notch areinserted into the plug terminals. Here, the positioning connectionbetween the LED light source board and the electric connector isachieved by the matching of the positioning hole and the positioningpillar. The arrangement of the notch makes the corresponding part of theelectrodes have good elasticity, so that the part of the electrodes canbe smoothly inserted into the plug terminals, while ensuring thereliability of the electrical connection.

Two mounting strips are provided on the inner side of the upper cover ina longitudinal direction of the upper cover, a positioning strip isprovided between middle positions of the two mounting strips, and amounting pillar with a screw hole is arranged at each edge positionbetween the two mounting strips. The electric connecting board isprovided with positioning through holes for the positioning strips topass through, and mounting holes for the mounting pillars to passthrough. A positioning seat matched with the positioning strips andprovided with a positioning groove is provided at a bottom of theaccommodating cavity. Screw penetration holes matched with the mountingpillars are provided at the bottom of the accommodating cavity. Afterthe upper cover and the lower cover are matched and connected, thebottoms of the two mounting strips abut against the front of theelectric connecting board so that the insertion ports are respectivelyformed on both sides between the upper cover and the lower cover. Here,two mounting strips are used to abut against the front of the electricconnecting board to make the upper cover and the lower cover have alarger distance to form the insertion ports. The matching of thepositioning strip with the positioning through hole and the positioninggroove achieves the positioning connection among the upper cover, theelectric connecting board and the lower cover, so that the upper cover,the electric connecting board and the lower cover can be quickly mountedtogether. The arrangement of the mounting pillars, the mounting holes,and the screw penetration holes allows the upper cover, the electricconnecting board, and the lower cover to be connected as a whole byscrews. The upper cover, the electric connecting board and the lowercover can be fixedly connected by a snap connection in actual design.

The LED light bar includes a metal substrate, and multiple LED units aresequentially processed on the metal substrate in a longitudinaldirection of the metal substrate. Each LED unit includes a heat sink, anupper lead section located above the heat sink, a lower lead sectionlocated below the heat sink and an LED chip. The heat sink is notconnected to the upper lead section and the lower lead section, and twoends of the upper lead section are correspondingly connected to two endsof the lower lead section through a connecting bridge. Two ends of theheat sink are wide and a middle part of the heat sink is narrow to forman inner recess. A protrusion that protrudes in a direction of the heatsink and is embedded in the inner recess is respectively provided on amiddle part of the upper lead section and a middle part of the lowerlead section. The LED chip is mounted on a narrow area in the middlepart of the heat sink, and two chip electrodes of the LED chip arerespectively electrically connected to the two protrusions throughwires. The LED chip is coated with fluorescent glue, and all the LEDchips are connected in series or in series and parallel by punching theconnecting bridge. Here, the heat sink, the upper lead section and thelower lead section are formed directly on the metal substrate throughthe existing punching process. During processing, the two ends of theupper lead section are connected to the two ends of the lower leadsection by a connecting bridge. When designing the circuit, theconnecting bridge is punched according to the connection requirements ofall the LED chips to make all the LED chips connected in series or inseries and parallel.

A first current limiting device is arranged on the front of the electricconnecting board, and the first current limiting device is connected inseries with the LED chip in the LED light source board that iselectrically connected to the electric connecting board. The surface ofthe LED light bar and the surface the electrode are covered with a firstprotective layer. Here, after the first current limiting device isarranged, the current of the LED light source board can be adjusted bythe driving power supply, thereby controlling the power of the LED lightsource board and ensuring the normal operation of the LED light sourceboard. The arrangement of the first protective layer can increase theinsulation of the LED light bar and the electrode, complies with safetyregulations, and prevents the risk of electric shock.

A high-power lamp using the LED light source assembly includes a lampcap, a lamp body and a driving power supply arranged in the lamp body,and the high-power lamp further includes multiple LED light sourceassemblies, a top ring, a top light source board, and a ring mask. Thelamp cap is connected with a narrow mouth portion of the lamp body, thetop light source board is mounted on the top of the top ring, and thering mask is covered outside the top light source board and connected tothe top of the top ring. When the number of the LED light sourceassembly is one, the top end of the wide mouth portion of the lamp bodyis connected to the bottom of the LED light source assembly. The topring is connected to the top of the LED light source assembly. Thesocket assembly in the LED light source assembly is electricallyconnected with the driving power supply in a plug-in mode. The pinassembly in the LED light source assembly is electrically connected withthe top light source board in a plug-in mode. Multiple ventilation holesare uniformly provided in the bottom of the wide mouth portion of thelamp body, and walls of the wide mouth portion of the lamp body and thetop ring in a circumferential direction thereof to form a chimney effectto achieve heat dissipation. When the number of LED light sourceassemblies is multiple, two adjacent LED light source assemblies areconnected by a connecting ring. The top end of the wide mouth portion ofthe lamp body is connected with the bottom of the bottommost LED lightsource assembly. The top ring is connected to the top of the topmost LEDlight source assembly. The socket assembly in the bottommost LED lightsource assembly is electrically connected to the driving power supply ina plug-in mode. The pin assembly in the topmost LED light sourceassembly is electrically connected to the top light source board in aplug-in mode. The two adjacent LED light source assemblies areelectrically connected by inserting the pins of the pin assemblies intothe jacks of the socket assembly. Multiple ventilation holes areuniformly provided in a bottom of the wide mouth portion of the lampbody, walls of the wide mouth portion of the lamp body, the connectingring, and the top ring in a circumferential direction thereof to form achimney effect to achieve heat dissipation, and dissipate the heatgenerated by the LED chips in the LED light source assembly, the LEDchips in the top light source board, and the driving power supply. Inthe design, only one LED light source assembly may be provided, but thepower of this kind of lamp will be relatively small. If the requiredpower is more than 100 W, at least two or more LED light sourceassemblies are required.

The lamp body includes a power supply bin and a bin cover, the powersupply bin has a horn structure, and a narrow mouth portion of the powersupply bin is connected with the lamp cap. The ventilation holes areprovided in the bottom and the wall of the wide mouth portion of thepower supply bin, and the inner cavity of the wide mouth portion iscoaxially provided with an inner ring. The outer wall of the inner ringand the inner wall of the wide mouth portion of the power supply bin areconnected by a first connecting rib. Multiple first baffles are providedin the inner side of the wide mouth portion of the power supply bin in acircumferential direction of the power supply bin. A first slot forfixing the LED light source board in the LED light source assembly isformed between the first baffle and the top end of the inner wall of thewide mouth portion of the power supply bin. The inner ring is uniformlyprovided with air passing holes communicating with the ventilation holesin a circumferential direction of the inner ring. The inner ring isprovided with an accommodating gap. The circuit board of the drivingpower supply is provided with a first flange. After the driving powersupply is mounted in the inner cavity of the inner ring, the firstflange is accommodated in the accommodating gap. The first flange isprovided with a power plug pin for inserting into the jack of the socketassembly. Heat dissipation through holes are provided in the top andwall of the bin cover, and a hollow connecting protrusion with a screwfixing pillar is provided on the top of the bin cover. When the numberof the LED light source assembly is one, the screw fixing pillar on thehollow connecting protrusion is connected with the top ring. When thenumber of the LED light source assembly is multiple, the screw fixingpillar on the hollow connecting protrusion is connected with theconnecting ring. After the bin cover is fixedly connected with the innerring, the power plug pin is exposed outside the bin cover.

A central cylinder with a counterbore pillar is coaxially arranged inthe connecting ring, and the central cylinder extends downward. The topof the outer wall of the central cylinder is connected with the innerwall of the connecting ring through a second connecting rib. Multiplesecond baffles are provided on the inner side of the connecting ring ina circumferential direction of the connecting ring. Second slots forfixing the LED light source board in the LED light source assembly areformed between the second baffles and the top end of the inner wall ofthe connecting ring and between the second baffles and the bottom end ofthe inner wall of the connecting ring. Multiple connecting pillars withscrew holes are uniformly provided on the top of the central cylinder ina circumferential direction of the central cylinder, and the positionsof the connecting pillars with screw holes and the counterbore pillarson the central cylinder are staggered. The counterbore pillar on thecentral cylinder in the bottommost connecting ring is connected with thescrew fixing pillar on the hollow connecting protrusion. The connectingpillars with screw holes in the topmost connecting ring are connectedwith the top ring. The two adjacent connecting rings are connected witheach other through the connecting pillar with screw holes and thecounterbore pillar on the central cylinder.

A hollow lower boss with a screw hole pillar is coaxially arranged in alower part of the top ring. The outer wall of the hollow lower boss andthe inner wall of the top ring are connected through a third connectingrib. The hollow lower boss and the third connecting rib enclose a pitused for mounting the driving power supply. Multiple third baffles areprovided on the inner side of the top ring in a circumferentialdirection of the top ring. Third slots for fixing the LED light sourceboard in the LED light source assembly are formed between the thirdbaffles and the bottom end of the inner wall of the top ring. When thenumber of the LED light source assembly is one, the screw hole pillar onthe hollow lower boss is connected with the screw fixing pillar on thehollow connecting protrusion. When the number of the LED light sourceassembly is multiple, the screw hole pillar on the hollow lower boss isconnected to the connecting pillar with screw holes. A positioningprotrusion is provided on the horizontal surface of the third connectingrib. A positioning gap matched with the positioning protrusion isprovided on a periphery of the top light source board. Buckles areuniformly provided on the top of the top ring in a circumferentialdirection of the top ring. Clamping slots for clamping with the bucklesare uniformly provided on the periphery of the ring mask. The top lightsource board is provided with a second flange, and the second flange isprovided with a plug jack for inserting the pin of the pin assembly.

A second current limiting device is arranged on the surface of the toplight source board, and the second current limiting device is connectedin series with the LED chip in the top light source board. The surfaceof the top light source board is covered with a second protective layer.Here, after the first current limiting device and the second currentlimiting device are arranged, the current of the LED light sourceassembly and the top light source board at different positions can beadjusted by the driving power supply, so as to control the power of theLED light source assembly and the top light source board at differentpositions to ensure the normal operation of the LED light sourceassembly and the top light source board. The arrangement of the secondprotective layer can increase the insulation of the top light sourceboard, complies with safety regulations, and prevents the risk ofelectric shock.

Compared with the prior art, the following advantages are providedaccording to the present application.

-   -   1) After the LED light source board is rolled into a cylindrical        shape, two ends of the LED light source board are respectively        connected to the two sides of the electric connector, and the        pin assembly is electrically connected to an electrode close to        the pin assembly, and the socket assembly is electrically        connected to the other electrode close to the socket assembly.        Since the LED light source assembly with this structure has a        large and thin area of the cylindrical LED light source board,        the heat generated by the LED chips in the LED light source        board can be quickly transferred to the surface of the LED light        source board and dissipated into the air. Meanwhile, because the        LED light source board is cylindrical, which is beneficial to        air flow and can quickly take away the heat generated by the LED        chip, the LED light source assembly with this structure does not        need a heat sink with large volume and heavy weight. The heat        conduction and cylindrical structure of the LED light source        board can effectively solve the heat dissipation problem of the        LED light source assembly, and avoid the increase of volume,        weight, and price caused by the heat sink.    -   2) One end of the electric connector has a pin assembly and        another end of the electric connector has a socket assembly. In        this way, when multiple LED light source assemblies are        combined, no additional wire welding is required, and the        electric connector can be directly plugged, which is beneficial        to the whole lamp assembly, thereby improving the assembly        efficiency of the whole lamp.    -   3) In the high-power lamp, in addition to multiple LED light        source assemblies, a top light source board is also set on the        top to increase the light-emitting area, thereby making the        light-emitting angle larger.    -   4) A first protective layer is covered on the surface of the LED        light source assembly, and a second protective layer is covered        on the surface of the top light source board, which increases        the insulation of the LED light source assembly and the top        light source board, complies the safety requirements, and        prevents the risk of electric shock.    -   5) A first current limiting device is arranged on the electric        connecting board and a second current limiting device is        arranged on the top light source board, the current of the LED        light source assembly and the top light source board at        different positions can be adjusted by the driving power supply,        so as to control the power of the LED light source assembly and        the top light source board at different positions to ensure the        normal operation of the LED light source assembly and the top        light source board.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view showing the structure of an LED light sourceassembly according to the present application when an LED light sourceboard and an electric connector are not assembled together;

FIG. 2 is a schematic view showing the structure of an LED light sourceassembly in an expanded state according to the present application;

FIG. 3 is a schematic view showing the three-dimensional structure of anLED light source assembly according to the present application;

FIG. 4 is a schematic view showing the planar structure of an LED lightsource board (LED chips in full series) in an LED light source assemblyaccording to the present application;

FIG. 5 is a schematic view showing the planar structure of an LED lightsource board (the LED chips are connected in parallel and then connectedin series) in an LED light source assembly according to the presentapplication;

FIG. 6 is a schematic view showing the three-dimensional structure of anelectric connector in an LED light source assembly according to thepresent application;

FIG. 7 is a side view of an electric connector in an LED light sourceassembly according to the present application;

FIG. 8 is an exploded view showing the structure of an electricconnector in an LED light source assembly according to the presentapplication;

FIG. 9 is a schematic view showing the three-dimensional structure of ahigh-power lamp according to the present application;

FIG. 10 is an exploded view showing the structure of a high-power lampaccording to the present application;

FIG. 11 is an exploded view showing the structure of a lamp body in ahigh-power lamp according to the present application;

FIG. 12 is a schematic view showing the structure of a driving powersupply in a high-power lamp according to the present application;

FIG. 13 is a first schematic view showing the structure of a connectingring in a high-power lamp according to the present application;

FIG. 14 is a second schematic view showing the structure of a connectingring in a high-power lamp according to the present application;

FIG. 15 is a first schematic view showing the structure of a top ring ina high-power lamp according to the present application;

FIG. 16 is a second schematic view showing the structure of a top ringin a high-power lamp according to the present application;

FIG. 17 is a schematic view showing the structure of a top light sourceboard in a high-power lamp according to the present application; and

FIG. 18 is a schematic view showing the structure of a ring mask in ahigh-power lamp according to the present application.

DETAILED DESCRIPTION

The present application will be further described in detail below inconjunction with the embodiments of the drawings.

First Embodiment

The LED light source assembly is provided according to this embodiment,as shown in FIGS. 1 to 8 , which includes an LED light source board 1and an electric connector 2. The LED light source board 1 has a stripstructure. The LED light source board 1 is provided with two electrodes11 which are arranged along a longitudinal direction of the LED lightsource board 1 and parallel to each other. One end of the electricconnector 2 is provided with a pin assembly 21 and another end of theelectric connector 2 is provided with a socket assembly 22, so that oneend of the LED light source board 1 in the longitudinal direction of theLED light source board 1 is connected to one side of the electricconnector 2. After the LED light source board 1 is rolled, another endof the LED light source board 1 in the longitudinal direction of the LEDlight source board 1 is connected to another side of the electricconnector 2, and the pin assembly 21 is electrically connected to one ofthe two electrodes 11 close to the pin assembly 21, and the socketassembly 22 is electrically connected to the other electrode 11 close tothe socket assembly 22 to form an LED light source assembly with acylindrical structure as a whole.

In this embodiment, the LED light source board 1 includes two electrodes11 and eight LED light bars 12 arranged along the longitudinal directionof the LED light source board 1 and arranged in parallel between the twoelectrodes 11. One of the two electrodes 11 and the LED light bar 12closest to the electrode 11, two adjacent LED light bars 12, and theother electrode 11 and the LED light bar 12 closest to the electrode 11are all connected into a whole through plastic connectors 13. One of thetwo electrodes 11 and the LED light bar 12 closest to the electrode 11,two adjacent LED light bars 12, and the other electrode 11 and the LEDlight bar 12 closest to the electrode 11 are all electrically connectedthrough electrical connecting wires 14.

In this embodiment, the electric connector 2 includes an upper cover 23,an electric connecting board 24, a box-shaped lower cover 25, the pinassembly 21 and the socket assembly 22. The pin assembly 21 is arrangedon one end of the front of the electric connecting board 24, and thesocket assembly 22 is arranged on another end of the front of theelectric connecting board 24. Plug terminals 26 for plugging the twoelectrodes 11 are symmetrically provided at the two ends of one side ofthe front of the electric connecting board 24, and the plug ports of theplug terminals 26 face the outer side of the electric connecting board24. The pin 211 in the pin assembly 21 is electrically connected to oneof the plug terminals 26 close to the pin 211 through a circuit of theelectric connecting board 24, and the connecting guide pin 221 in thesocket assembly 22 is electrically connected to another plug terminal 26close to the connecting guide pin 221 through the circuit of theelectric connecting board 24. The lower cover 25 is provided with anaccommodating cavity 251, and the pin assembly 21 and the socketassembly 22 are exposed outside the lower cover 25 after the electricconnecting board 24 is placed in the accommodating cavity 251. The uppercover 23 is covered on the electric connecting board 24, and after theupper cover 23 and the lower cover 25 are matched and connected,insertion ports 27 for inserting ends in the longitudinal direction ofthe LED light source board 1 are respectively formed in two sidesbetween the upper cover 23 and the lower cover 25 longitudinal. Here,the size of the upper cover 23 is required to be slightly smaller thanthat of the lower cover 25 in design, so that the plug terminals 26 areexposed outside the upper cover 23, that is, outside the insertion ports27. After the ends of the longitudinal direction of the LED light sourceboard 1 insert into the insertion ports 27, the ends are upturned toabut against the inner side of the upper cover 23.

In this embodiment, positioning holes 111 are respectively provided attwo ends of each electrode 11 in a longitudinal direction of theelectrode, and a notch 15 is formed by cutting one end of the plasticconnector 13 connecting the electrode 11 and the LED light bar 12 in thelongitudinal direction of the plastic connector. The notch 15 extends tothe closest positioning hole 111. Two positioning pillars 252 arerespectively arranged on two sides of the lower cover 25, and thepositioning pillars 252 are respectively positioned outside theinsertion port 27, and each of the positioning pillars 252 is matchedwith the corresponding positioning hole 111 to achieve positioning. Oneend of the LED light source board 1 with the notch 15 is inserted intoone of the insertion ports 27 on the same side as the plug terminals 26,while another end of the LED light source board 1 is inserted into theother insertion port 27, and parts of the electrodes 11 separated by thenotch are inserted into the plug terminals 26. Here, the positioningconnection between the LED light source board 1 and the electricconnector 2 is achieved by the matching of the positioning hole 111 andthe positioning pillar 252. In order to facilitate the positioning hole111 to be sleeved outside the positioning pillar 252, the top endsurface of the positioning pillar 252 is designed to be a downward slopefrom the inside to the outside. The arrangement of the notch 15 makesthe corresponding part of the electrodes have good elasticity, so thatthe part of the electrodes can be smoothly inserted into the plugterminals 26, while ensuring the reliability of the electricalconnection.

In this embodiment, two mounting strips 231 are provided on the innerside of the upper cover 23 in the longitudinal direction of the uppercover 23, a positioning strip 232 is provided between the middlepositions of the two mounting strips 231, and a mounting pillar 233 witha screw hole is arranged at each edge position between the two mountingstrips 231. The electric connecting board 24 is provided withpositioning through holes 241 for the positioning strips 232 to passthrough, and mounting holes 242 for the mounting pillars 233 to passthrough. A positioning seat 254 matched with the positioning strip 232and provided with a positioning groove 253 is provided at the bottom ofthe accommodating cavity 251. Screw penetration holes 255 matched withthe mounting pillars 233 are provided at the bottom of the accommodatingcavity 251. After the upper cover 23 and the lower cover 25 are matchedand connected, the bottoms of the two mounting strips 231 abut againstthe front of the electric connecting board 24 so that the insertionports 27 are respectively formed on both sides between the upper cover23 and the lower cover 25. Here, two mounting strips 231 are used toabut against the front of the electric connecting board 24 to make theupper cover 23 and the lower cover 25 have a larger distance to form theinsertion ports 27. The matching of the positioning strip 232 with thepositioning through hole 241 and the positioning groove 253 achieves thepositioning connection among the upper cover 23, the electric connectingboard 24 and the lower cover 25, so that the upper cover 23, theelectric connecting board 24 and the lower cover 25 can be quicklymounted together. The arrangement of the mounting pillar 233, themounting holes 242, and the screw penetration holes 255 allows the uppercover 23, the electric connecting board 24, and the lower cover 25 to beconnected as a whole by screws. The upper cover 23, the electricconnecting board 24 and the lower cover 25 can be fixedly connected bysnap connection in actual design.

In this embodiment, the LED light bar 12 includes a metal substrate 121,and multiple LED units 122 are sequentially processed on the metalsubstrate 121 in a longitudinal direction of the metal substrate 121.Each LED unit 122 includes a heat sink 123, an upper lead section 124located above the heat sink 123, a lower lead section 125 located belowthe heat sink 123 and an LED chip 126. The heat sink 123 is notconnected to the upper lead section 124 and the lower lead section 125,and two ends of the upper lead section 124 are correspondingly connectedto the two ends of the lower lead section 125 through a connectingbridge 127. The two ends of the heat sink 123 are wide and the middlepart of the heat sink 123 is narrow to form an inner recess 128. Aprotrusion 129 that protrudes in a direction of the heat sink 123 and isembedded in the inner recess 128 is respectively provided on the middleparts of the upper lead section 124 and the lower lead section 125. TheLED chip 126 is mounted on the narrow area in the middle part of theheat sink 123, and the two chip electrodes of the LED chip 126 arerespectively electrically connected to the two protrusions 129 throughwires. The LED chips 126 are coated with fluorescent glue (not shown inthe figure), and all the LED chips are connected in series or in seriesand parallel by punching the connecting bridge 127. Here, the heat sink123, the upper lead section 124 and the lower lead section 125 areformed directly on the metal substrate through the existing punchingprocess. During processing, the two ends of the upper lead section 124are connected to the two ends of the lower lead section 125 by aconnecting bridge 127. When designing the circuit, the connecting bridge127 is punched according to the connection requirements of all the LEDchips 126 to make all the LED chips 126 connected in series or in seriesand parallel.

In this embodiment, the surface of the LED light bar 12 and the surfaceof the electrode 11 are covered with a first protective layer (not shownin the figure). The arrangement of the first protective layer canincrease the insulation of the LED light bar and the electrode, complieswith safety regulations, and prevents the risk of electric shock. Thefirst protective layer may be a transparent or translucent film or glue,or other protection methods may be used.

As described above, both the pin assembly 21 and the socket assembly 22adopt the prior art. The plastic connector 13 is formed by fillingplastic. The upper cover 23 and the lower cover 25 are both made ofinsulating materials. The electric connecting board 24 may be a PCBboard, and the circuit on the PCB board may be designed according toactual requirements. The plug terminal 26 is a conductor, and theelectrical connection is achieved after the electrode 11 is insertedinto the plug terminal 26.

Second Embodiment

A high-power lamp using the LED light source assembly of the firstembodiment is provided according to this embodiment, as shown in FIGS. 9to 18 , which includes a lamp cap 3, a lamp body 4, a driving powersupply 5 provided in the lamp body 4, three LED light source assembliesG, a top ring 7, a top light source board 8 and a ring mask 9. The lampcap 3 is connected with the narrow mouth portion of the lamp body 4, thetop light source board 1 is mounted on the top of the top ring 7, andthe ring mask 9 is covered outside the top light source board 1 andconnected to the top of the top ring 7. Two adjacent LED light sourceassemblies G are connected by a connecting ring 6. The top end of thewide mouth portion of the lamp body 4 is connected to the bottom of theLED light source assembly G. The top ring 7 is connected to the top ofthe LED light source assembly G. The socket assembly 22 in thebottommost LED light source assembly G and the driving power source 5are electrically connected in a plug-in mode. The pin assembly 21 in thetopmost LED light source assembly G is electrically connected to the toplight source board 8 in a plug-in mode. The two adjacent LED lightsource assemblies G are electrically connected by inserting the pins 211of the pin assemblies 21 into the jacks (not shown in the figure) of thesocket assembly 22. Multiple ventilation holes 41 are uniformly providedat the bottom of the wide mouth portion of the lamp body 4, and walls ofthe wide mouth portion of the lamp body 4, the connecting ring 6, andthe top ring 7 in the circumferential direction thereof to form achimney effect to achieve heat dissipation, and to dissipate the heatgenerated by the LED chips 126 in the LED light source assembly, the LEDchips in the top light source board 8, and the driving power supply 5.

In this embodiment, the lamp body 4 includes a power supply bin 42 and abin cover 43, the power supply bin 42 has a horn structure, and thenarrow mouth portion of the power supply bin 42 is connected with thelamp cap 3. The ventilation holes 41 are provided in the bottom and thewall of the wide mouth portion of the power supply bin 42, and the innercavity of the wide mouth portion of the power supply bin 42 is coaxiallyprovided with an inner ring 44. The outer wall of the inner ring 44 andthe inner wall of the wide mouth portion of the power supply bin 42 areconnected by a first connecting rib 45. Multiple first baffles 46 areprovided in the inner side of the wide mouth portion of the power supplybin 42 in the circumferential direction of the power supply bin 42. Afirst slot 47 for fixing the LED light source board 1 in the LED lightsource assembly G is formed between the first baffle 46 and the top endof the inner wall of the wide mouth portion of the power supply bin 42.The inner ring 44 is uniformly provided with air passing holes 48communicating with the ventilation holes 41 in the circumferentialdirection of the inner ring 44. The inner ring 44 is provided with anaccommodating gap 49. The circuit board of the driving power supply 5 isprovided with a first flange 51. After the driving power supply 5 ismounted in the inner cavity of the inner ring 44, the first flange 51 isaccommodated in the accommodating gap 49. The first flange 51 isprovided with a power plug pin 52 for inserting into the jack of thesocket assembly 22. Heat dissipation through holes 431 are provided inthe top and wall of the bin cover 43, and a hollow connecting protrusion433 with a screw fixing pillar 432 is provided on the top of the bincover 43. The screw fixing pillar 432 on the hollow connectingprotrusion 433 is connected with the connecting ring 6. After the bincover 43 is fixedly connected with the inner ring 44, the power plug pin52 is exposed outside the bin cover 43.

In this embodiment, a central cylinder 62 with a counterbore pillar 61is coaxially arranged in the connecting ring 6, and the central cylinder62 extends downward. The top of the outer wall of the central cylinder62 is connected with the inner wall of the connecting ring 6 through asecond connecting rib 64. Multiple second baffles 64 are provided on theinner side of the connecting ring 6 in the circumferential direction ofthe connecting ring 6. Second slots 65 for fixing the LED light sourceboard 1 in the LED light source assembly G are formed between the secondbaffle 64 and the top end of the inner wall of the connecting ring 6 andbetween the second baffle 64 and the bottom end of the inner wall of theconnecting ring 6. Multiple connecting pillars 66 with screw holes areuniformly provided on the top of the central cylinder 62 in thecircumferential direction of the central cylinder 62, and the positionsof the connecting pillar 66 with screw holes and the counterbore pillars61 on the central cylinder 62 are staggered. The counterbore pillar 61on the central cylinder 62 in the bottommost connecting ring 6 isconnected with the screw fixing pillar 432 on the hollow connectingprotrusion 433. The connecting pillar 66 with screw holes in the topmostconnecting ring 6 is connected with the top ring 7. The two adjacentconnecting rings 6 are connected with each other through the connectingpillar 66 with screw holes and the counterbore pillar 61 on the centralcylinder 62.

In this embodiment, a hollow lower boss 72 with a screw hole pillar 71is coaxially arranged under the top ring 7. The outer wall of the hollowlower boss 72 and the inner wall of the top ring 7 are connected througha third connecting rib 73. The hollow lower boss 72 and the thirdconnecting rib 73 enclose a pit 74 used for mounting the driving powersupply 5. Multiple third baffles 75 are provided on the inner side ofthe top ring 7 in a circumferential direction of the top ring 7. Thirdslots 76 for fixing the LED light source board 1 in the LED light sourceassembly G are formed between the third baffles 75 and the bottom end ofthe inner wall of the top ring 7. The screw hole pillar 71 on the hollowlower boss 72 is connected to the connecting pillar 66 with screw holes.A positioning protrusion 77 is provided on the horizontal surface of thethird connecting rib 73. A positioning gap 82 matched with thepositioning protrusion 77 is provided on a periphery of the top lightsource board 8. Buckles 78 are uniformly provided on the top of the topring 7 in the circumferential direction of the top ring 7. Clampingslots 91 for clamping with the buckles 78 are uniformly provided on aperiphery of the ring mask 9. The top light source board 8 is providedwith a second flange 83, and the second flange 83 is provided with aplug jack 84 for inserting the pin 211 of the pin assembly 21.

In this embodiment, the surface of the top light source board 8 iscovered with a second protective layer (not shown in the figure). Thearrangement of the second protective layer can increase the insulationof the top light source board 8, complies with the safety regulations,and prevents the risk of electric shock. The second protective layer maybe a transparent or translucent film or glue, or other protectionmethods may be used.

When the number of the LED light source assembly G is one, the top endof the wide mouth portion of the lamp body 4 is connected to the bottomof the LED light source assembly G. The top ring 7 is connected to thetop of the LED light source assembly G. The socket assembly 22 in theLED light source assembly G is electrically connected with the drivingpower supply 5 in a plug-in mode. The pin assembly 21 in the LED lightsource assembly G is electrically connected with the top light sourceboard 8 in a plug-in mode. Multiple ventilation holes 41 are uniformlyprovided on the bottom of the wide mouth portion of the lamp body 4, thewalls of the wide mouth portion of the lamp body 4, and the top ring 7in the circumferential direction thereof to form a chimney effect toachieve heat dissipation. The screw hole pillar 71 on the hollow lowerboss 72 is connected with the screw fixing pillar 432 on the hollowconnecting protrusion 433.

Third Embodiment

A high-power lamp using the LED light source assembly of the firstembodiment is provided in this embodiment, the structure of which isbasically the same as that of the high-power lamp of the secondembodiment. The only difference is that: each electric connector 2 isprovided with a first current limiting device 249 on the front of theelectric connecting board 24. The first current limiting device 249 isconnected in series with the LED chip 126 in the LED light source board1 electrically connected to the electric connecting board 24. A secondcurrent limiting device 89 is provided on the surface of the top lightsource board 8. The second current limiting device 89 is connected inseries with the LED chip 81 in the top light source board 8. After thefirst current limiting device 249 and the second current limiting device89 are provided, the current of the LED light source assembly G and thetop light source board 8 at different positions can be adjusted by thedriving power supply 5, so as to control the power of the LED lightsource assembly G and the top light source board 8 at differentpositions and ensure the normal operation of the LED light sourceassembly G and the top light source board 8.

In this embodiment, the first current limiting device 249 and the secondcurrent limiting device 89 include, but are not limited to, a resistor,a constant current tube, and a transistor. The current limiting valuesof the first current limiting device 249 and the second current limitingdevice 89 may be designed to be the same or different according to therequirements of different mounting environments. In an embodiment, whenthe above high-power lamp with three LED light source assemblies G ismounted on a lamp holder with a lamp shade, the heat dissipation effectof the LED light source assembly G closer to the lamp shade is worse dueto the obstruction of the lamp shade. Therefore, in order to prevent theLED light source assembly G from failing during the long-term lightingprocess, the current limiting value of the first current limiting device249 on the LED light source assembly G closest to the lamp shade may beset smaller to reduce the power of the LED light source assembly G. Thecurrent limiting value of the first current limiting device 249 on theLED light source assembly G far away from the lampshade may be setlarger to increases the power of the LED light source assembly G, thusensuring that the heat dissipation effect of the LED light sourceassembly G on each layer is similar and prolonging the service life ofthe high-power lamp. In another example, when the above high-power lampwith three LED light source assemblies G is mounted on a lamp holderwithout a lamp shade. Since the above high-power lamp is in directcontact with the external environment, the current limiting values ofthe first current limiting devices 249 on the LED light sourceassemblies G may be set to the same.

The invention claimed is:
 1. An LED light source assembly, comprising: arolled LED light source board, and an electric connector, wherein theLED light source board is provided with two electrodes which arearranged in a longitudinal direction of the LED light source board andparallel to each other, and one end of the electric connector isprovided with a pin assembly and another end of the electric connectoris provided with a socket assembly, one end of the LED light sourceboard in the longitudinal direction of the LED light source board isconnected to one side of the electric connector; and another end of therolled LED light source board in the longitudinal direction of the LEDlight source board is connected to another side of the electricconnector, and the pin assembly is electrically connected to one of thetwo electrodes close to the pin assembly, and the socket assembly iselectrically connected to the other electrode close to the socketassembly to form the LED light source assembly with a cylindricalstructure as a whole.
 2. The LED light source assembly according toclaim 1, wherein, the LED light source board comprises the twoelectrodes and a plurality of LED light bars arranged along thelongitudinal direction of the LED light source board and arranged inparallel between the two electrodes, and one of the two electrodes andthe LED light bar closest to the electrode, two adjacent LED light bars,and the other electrode and the LED light bar closest to the electrodeare all connected into a whole through plastic connectors; and one ofthe two electrodes and the LED light bar closest to the electrode, twoadjacent LED light bars, the other electrode and the LED light barclosest to the electrode are all electrically connected throughelectrical connecting wires.
 3. The LED light source assembly accordingto claim 2, wherein, the electric connector comprises an upper cover, anelectric connecting board, a box-shaped lower cover, the pin assemblyand the socket assembly; and the pin assembly is arranged on one end ofa front of the electric connecting board, and the socket assembly isarranged on another end of the front of the electric connecting board,and plug terminals for plugging the two electrodes are symmetricallyprovided at the two ends of one side of the front of the electricconnecting board, and plug ports of the plug terminals face an outerside of the electric connecting board, and a pin in the pin assembly iselectrically connected to one of the plug terminals close to the pinthrough a circuit of the electric connecting board, and a connectingguide pin in the socket assembly is electrically connected to anotherplug terminal close to the connecting guide pin through the circuit ofthe electric connecting board, and the lower cover is provided with anaccommodating cavity, and the pin assembly and the socket assembly areexposed outside the lower cover after the electric connecting board isplaced in the accommodating cavity, and the upper cover is covered onthe electric connecting board, and after the upper cover and the lowercover are matched and connected, insertion ports for inserting ends inthe longitudinal direction of the LED light source board arerespectively formed in two sides between the upper cover and the lowercover.
 4. The LED light source assembly according to claim 3, wherein,positioning holes are respectively provided at two ends of eachelectrode in a longitudinal direction of the electrode , and a notch isformed by cutting one end of the plastic connector connecting theelectrode and the LED light bar in a longitudinal direction of theplastic connector, and the notch extends to the closest positioninghole, and two positioning pillars are respectively arranged on two sidesof the lower cover, and the positioning pillars are respectivelypositioned outside the insertion ports, and each of the positioningpillars is matched with the corresponding positioning hole to achievepositioning; and one end of the LED light source board with the notch isinserted into one of the insertion ports on a same side as the plugterminals, while another end of the LED light source board is insertedinto the other insertion port, and parts of the electrodes separated bythe notch are inserted into the plug terminals.
 5. The LED light sourceassembly according to claim 4, wherein, two mounting strips are providedon an inner side of the upper cover in a longitudinal direction of theupper cover, a positioning strip is provided between middle positions ofthe two mounting strips, and a mounting pillar with a screw hole isarranged at each edge position between the two mounting strips, and theelectric connecting board is provided with positioning through holes forthe positioning strips to pass through, and mounting holes for themounting pillars to pass through, and a positioning seat matched withthe positioning strips and provided with a positioning groove isprovided at a bottom of the accommodating cavity, and screw penetrationholes matched with the mounting pillars are provided at the bottom ofthe accommodating cavity, and bottoms of the two mounting strips abutagainst the front of the electric connecting board to form the insertionports on both sides between the upper cover and the lower cover afterthe upper cover and the lower cover are matched and connected.
 6. TheLED light source assembly according to claim 3, wherein, two mountingstrips are provided on an inner side of the upper cover in alongitudinal direction of the upper cover, a positioning strip isprovided between middle positions of the two mounting strips, and amounting pillar with a screw hole is arranged at each edge positionbetween the two mounting strips, and the electric connecting board isprovided with positioning through holes for the positioning strips topass through, and mounting holes for the mounting pillars to passthrough, and a positioning seat matched with the positioning strips andprovided with a positioning groove is provided at a bottom of theaccommodating cavity, and screw penetration holes matched with themounting pillars are provided at the bottom of the accommodating cavity,and bottoms of the two mounting strips abut against the front of theelectric connecting board to form the insertion ports on both sidesbetween the upper cover and the lower cover after the upper cover andthe lower cover are matched and connected.
 7. The LED light sourceassembly according to claim 6, wherein, the LED light bar comprises ametal substrate, and a plurality of LED units are sequentially processedon the metal substrate in a longitudinal direction of the metalsubstrate, and each of the plurality of LED units comprises a heat sink,an upper lead section located above the heat sink, a lower lead sectionlocated below the heat sink and an LED chip, and the heat sink is notconnected to the upper lead section and the lower lead section, and twoends of the upper lead section are correspondingly connected to two endsof the lower lead section through a connecting bridge, and two ends ofthe heat sink are wide and a middle part of the heat sink is narrow toform an inner recess, and a protrusion that protrudes in a direction ofthe heat sink and is embedded in the inner recess is respectivelyprovided on a middle part of the upper lead section and a middle part ofthe lower lead section, and the LED chip is mounted on a narrow area inthe middle part of the heat sink, and two chip electrodes of the LEDchip are respectively electrically connected to the two protrusionsthrough wires, and the LED chip is coated with fluorescent glue, and allthe LED chips are connected in series or in series and parallel bypunching the connecting bridge.
 8. The LED light source assemblyaccording to claim 7, wherein, a first current limiting device isarranged on the front of the electric connecting board, and the firstcurrent limiting device is connected in series with the LED chip in theLED light source board that is electrically connected to the electricconnecting board, and a surface of the LED light bar and a surface ofthe electrode are covered with a first protective layer.
 9. A high-powerlamp using the LED light source assembly according to claim 8,comprising a lamp cap, a lamp body, and a driving power supply arrangedin the lamp body, wherein the high-power lamp further comprises aplurality of LED light source assemblies, a top ring, a top light sourceboard, and a ring mask, and the lamp cap is connected with a narrowmouth portion of the lamp body, the top light source board is mounted ona top of the top ring, and the ring mask is covered outside the toplight source board and connected to the top of the top ring, and when anumber of the LED light source assembly is one, a top end of a widemouth portion of the lamp body is connected to a bottom of the LED lightsource assembly, and the top ring is connected to a top of the LED lightsource assembly, and the socket assembly in the LED light sourceassembly is electrically connected with the driving power supply in aplug-in mode, and the pin assembly in the LED light source assembly iselectrically connected with the top light source board in the plug-inmode, and a plurality of ventilation holes are uniformly provided in abottom of the wide mouth portion of the lamp body, and walls of the widemouth portion of the lamp body and the top ring in a circumferentialdirection thereof to form a chimney effect to achieve heat dissipation;when the number of LED light source assemblies is multiple, two adjacentLED light source assemblies are connected by a connecting ring, and thetop end of the wide mouth portion of the lamp body is connected with thebottom of the bottommost LED light source assembly, and the top ring isconnected to the top of the topmost LED light source assembly, and thesocket assembly in the bottommost LED light source assembly iselectrically connected to the driving power supply in the plug-in mode,and the pin assembly in the topmost LED light source assembly iselectrically connected to the top light source board in the plug-inmode, and the two adjacent LED light source assemblies are electricallyconnected by inserting the pins of the pin assembly into jacks of thesocket assembly, and a plurality of ventilation holes are uniformlyprovided in a bottom of the wide mouth portion of the lamp body, andwalls of the wide mouth portion of the lamp body, the connecting ring,and the top ring in a circumferential direction thereof to form achimney effect to achieve heat dissipation.
 10. The high-power lampusing the LED light source assembly according to claim 9, wherein, thelamp body comprises a power supply bin and a bin cover, the power supplybin has a horn structure, and a narrow mouth portion of the power supplybin is connected with the lamp cap; and the ventilation holes areprovided in the bottom and the wall of the wide mouth portion of thepower supply bin, and an inner cavity of the wide mouth portion iscoaxially provided with an inner ring; and an outer wall of the innerring and an inner wall of the wide mouth portion of the power supply binare connected by a first connecting rib, and a plurality of firstbaffles are provided in an inner side of the wide mouth portion of thepower supply bin in a circumferential direction of the power supply bin,and a first slot for fixing the LED light source board in the LED lightsource assembly is formed between the first baffle and a top end of theinner wall of the wide mouth portion of the power supply bin, and theinner ring is uniformly provided with air passing holes communicatingwith the ventilation holes in a circumferential direction of the innerring, the inner ring is provided with an accommodating gap, and acircuit board of the driving power supply is provided with a firstflange, and after the driving power supply is mounted in an inner cavityof the inner ring, the first flange is accommodated in the accommodatinggap, and the first flange is provided with a power plug pin forinserting into the jack of the socket assembly, and heat dissipationthrough holes are provided in a top and wall of the bin cover, and ahollow connecting protrusion with a screw fixing pillar is provided onthe top of the bin cover; and the screw fixing pillar on the hollowconnecting protrusion is connected with the top ring when the number ofthe LED light source assembly is one, and the screw fixing pillar on thehollow connecting protrusion is connected with the connecting ring whenthe number of the LED light source assembly is multiple, and the powerplug pin is exposed outside the bin cover after the bin cover is fixedlyconnected with the inner ring.
 11. The high-power lamp using the LEDlight source assembly according to claim 10, wherein, a central cylinderwith a counterbore pillar is coaxially arranged in the connecting ring,and the central cylinder extends downward; a top of an outer wall of thecentral cylinder is connected with an inner wall of the connecting ringthrough a second connecting rib, and a plurality of second baffles areprovided on the inner side of the connecting ring in a circumferentialdirection of the connecting ring, and second slots for fixing the LEDlight source board in the LED light source assembly are formed betweenthe plurality of second baffles and the top end of the inner wall of theconnecting ring and between the plurality of second baffles and thebottom end of the inner wall of the connecting ring, and a plurality ofconnecting pillars with screw holes are uniformly provided on the top ofthe central cylinder in a circumferential direction of the centralcylinder, and positions of the plurality of connecting pillars withscrew holes and the counterbore pillars on the central cylinder arestaggered, and the counterbore pillar on the central cylinder in thebottommost connecting ring is connected with the screw fixing pillar onthe hollow connecting protrusion, and the plurality of connectingpillars with screw holes in the topmost connecting ring are connectedwith the top ring, and two adjacent connecting rings are connected witheach other through the connecting pillars with screw holes and thecounterbore pillar on the central cylinder.
 12. The high-power lampusing the LED light source assembly according to claim 11, wherein, ahollow lower boss with a screw hole pillar is coaxially arranged in alow part of the top ring, and an outer wall of the hollow lower boss andan inner wall of the top ring are connected through a third connectingrib, and the hollow lower boss and the third connecting rib encloses apit used for mounting the driving power supply, and a plurality of thirdbaffles are provided on the inner side of the top ring in acircumferential direction of the top ring, and third slots for fixingthe LED light source board in the LED light source assembly are formedbetween the plurality of third baffles and the bottom end of the innerwall of the top ring, and when the number of the LED source assembly isone, the screw hole pillar on the hollow lower boss is connected withthe screw fixing pillar on the hollow connecting protrusion, and whenthe number of the LED source assembly is multiple, the screw hole pillaron the hollow lower boss is connected to the connecting pillar withscrew holes, and a positioning protrusion is provided on a horizontalsurface of the third connecting rib, and a positioning gap matched withthe positioning protrusion is provided on a periphery of the top lightsource board, and buckles are uniformly provided on the top of the topring in the circumferential direction of the top ring, and clampingslots for clamping with the buckles are uniformly provided on aperiphery of the ring mask, and the top light source board is providedwith a second flange, and the second flange is provided with a plug jackfor inserting the pin of the pin assembly.
 13. The high-power lamp usingthe LED light source assembly according to claim 12, wherein, a secondcurrent limiting device is arranged on a surface of the top light sourceboard, and the second current limiting device is connected in serieswith the LED chip in the top light source board, and the surface of thetop light source board is covered with a second protective layer. 14.The high-power lamp using the LED light source assembly according toclaim 9, wherein, a second current limiting device is arranged on asurface of the top light source board, and the second current limitingdevice is connected in series with the LED chip in the top light sourceboard, and the surface of the top light source board is covered with asecond protective layer.
 15. The high-power lamp using the LED lightsource assembly according to claim 10, wherein, a second currentlimiting device is arranged on a surface of the top light source board,and the second current limiting device is connected in series with theLED chip in the top light source board, and the surface of the top lightsource board is covered with a second protective layer.
 16. Thehigh-power lamp using the LED light source assembly according to claim11, wherein, a second current limiting device is arranged on a surfaceof the top light source board, and the second current limiting device isconnected in series with the LED chip in the top light source board, andthe surface of the top light source board is covered with a secondprotective layer.